The Barcode of the Beast 666
Remember what it said in the Book of Revelations?
If anyone has insight, let him calculate the number of the beast, for it is man's number. His number is 666.
And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name.
Update the Book of Revelations. Wear the modern mark of the Beast 666 and make it easier for the check-out girls of Hell to scan you in.